Ostomy bag film forming equipment

Abstract

The invention provides ostomy bag film forming equipment, and relates to the technical field of film forming. The ostomy bag film forming equipment comprises a placing table, a pressing device, a heating device and a heat insulation device, the placing table is used for placing a film, and an air hole lifts the film during heating through air pressure adjustment; the end face of the mold facing the film has molding lines; the heating device is arranged on one side of the placing table, and a heating part extends above the placing table to heat the film; the third driving mechanism drives the heat insulation body to be switched between the heating station and the avoiding station. According to the embodiment of the invention, the mold and the heating part are designed in a split manner, and the heating device and the pressing device are physically separated, so that the combination of non-contact heating and low-temperature mold profiling is realized. In the heating process, the film is in a suspended state by means of air pressure of the placing table, and the heating part performs non-contact radiation heating on the suspended film, so that direct contact between the mold and the high-temperature film is avoided, and the forming quality of the film is improved.

Description

Technical Field

[0001] This invention belongs to the field of film forming technology, and in particular relates to a film forming device for ostomy bags. Background Technology

[0002] The film molding technology involves first heating and softening the film, then pressing it down with a mold to form a textured film. To ensure the ostomy bag film better conforms to human skin, specific textured patterns need to be created on its surface to improve breathability and comfort.

[0003] In existing technologies, molding equipment uses a textured heated mold to press down on the film during the heating process to form the film. However, this method of using a heated mold to press down on the film can easily cause excessive heat accumulation in the contact area between the mold and the film, leading to localized overheating and aging of the film, affecting molding quality and product lifespan. More importantly, the hot mold can stick to the film, causing damage or texture deformation during demolding, increasing the scrap rate in the production process. Summary of the Invention

[0004] In view of this, the present invention provides an ostomy bag film molding device, which aims to reduce the risks of local overheating and aging, demolding adhesion, etc., and improve molding quality.

[0005] The technical solution of this invention is implemented as follows:

[0006] This invention provides an ostomy bag film forming device, comprising: a placement platform for placing film, the placement platform having air holes to lift the film during heating by adjusting air pressure; a pressing device disposed above the placement platform, including a first driving mechanism and a mold having a driving end of the first driving mechanism, the mold having forming patterns on the end face facing the film; a heating device disposed on one side of the placement platform, including a second driving mechanism and a heating part disposed on the driving end of the second driving mechanism to drive the heating part to extend above the placement platform to heat the film; and a heat insulation device disposed on the side between the placement platform and the pressing device, including a third driving mechanism and a heat insulation body connected to the driving end of the third driving mechanism, the third driving mechanism being used to drive the heat insulation body to switch between a heating position and an avoidance position.

[0007] In one embodiment, the surface of the placement platform has at least three independent air control zones, each of which is provided with an air hole, and the air hole is connected to a bidirectional air pump.

[0008] In one embodiment, the heat insulation body is capable of being rolled up and stored in the side of the drive end of the third drive mechanism in the rolled-up state.

[0009] In one embodiment, the heat insulation body is a rollable heat insulation film, and a flexible support strip is provided on the inner side of the heat insulation film; the flexible support strip extends along the winding direction of the separator film to support the heat insulation film when the heat insulation film is in the unfolded state.

[0010] In one embodiment, a reflective coating is provided on the side of the heat insulation film facing the heating element.

[0011] In one embodiment, the third driving mechanism includes a drive motor and a reel driven to rotate by the drive motor; one end of the heat insulation body is fixed to the outer circumferential surface of the reel, the drive motor drives the reel to wind the heat insulation body by rotating forward to achieve curling and storage, and drives the reel to release the heat insulation body by rotating in reverse to achieve unfolding and support.

[0012] In one embodiment, the heat insulation device further includes a limiting flange, which is sleeved on both ends of the reel to limit the axial displacement of the heat insulation body during the winding process.

[0013] In one embodiment, the heating element includes: an electromagnetic coil connected to the driving end of the second driving mechanism; and an inductive heating element connected to the driving end of the second driving mechanism and disposed corresponding to the electromagnetic coil to induce heating.

[0014] In one embodiment, the surface of the inductive heating element facing the film is coated with a black oxide layer.

[0015] In one embodiment, the heating unit further includes an annular airflow guide ring, the interior of which is connected to an air source, and the end face of the annular guide ring facing the placement stage is provided with a plurality of annular array airflow nozzles to blow protective gas onto the film surface during the heating process.

[0016] This invention provides an ostomy bag film forming device, which includes a placement platform, a pressing device, a heating device, and a heat insulation device. The placement platform is used to place the film and has air holes to lift the film during heating by adjusting the air pressure. The pressing device is located above the placement platform and includes a first driving mechanism and a mold disposed at the driving end of the first driving mechanism. The end face of the mold facing the film has forming patterns. The heating device is located on one side of the placement platform and includes a second driving mechanism and a heating part disposed at the driving end of the second driving mechanism to drive the heating part to extend above the placement platform to heat the film. The heat insulation device is located on the side between the placement platform and the pressing device and includes a third driving mechanism and a heat insulation body connected to the driving end of the third driving mechanism. The third driving mechanism is used to drive the heat insulation body to switch between a heating position and a clearance position. This invention, by using a separate design for the mold and the heating part, physically separates the heating device and the pressing device, achieving a combination of non-contact heating and low-temperature mold forming. During the heating process, the film is suspended in a state by the air pressure of the placement platform. The heating unit applies non-contact radiant heating to the suspended film, thus avoiding direct contact between the mold and the high-temperature film. After the film softens from the heat, the mold presses down to complete the molding operation. Subsequently, positive pressure gas is introduced into the placement platform to lift the film and separate it from the mold. Throughout the entire process, the mold is kept at room temperature or low temperature, which reduces the risk of the hot mold sticking to the film, significantly reduces the breakage rate of the film during demolding, and improves the molding quality of the film. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the ostomy bag film forming equipment provided by the present invention;

[0019] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 This is a schematic diagram of the pressing device.

[0021] Figure 4 This is a schematic diagram of the first type of ostomy bag film;

[0022] Figure 5 This is a schematic diagram of the second type of ostomy bag film;

[0023] Figure 6This is a schematic diagram of the third type of ostomy bag film.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Placement platform; 11. Air vent; 2. Pressing device; 21. First drive mechanism; 22. Mold; 3. Heating device; 31. Second drive mechanism; 32. Heating section; 321. Induction heating element; 4. Heat insulation device; 41. Third drive mechanism; 411. Drive motor; 412. Reel; 413. Limiting flange; 42. Heat insulation body; 421. Heat insulation film; 43. Flexible support strip; 5a / 5b / 5c. Ostomy bag film; 6. Cutting tool. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0027] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0028] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. "Multiple" refers to two or more. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0029] The film molding technology involves first heating and softening the film, then pressing it down with a mold to form a textured film. To ensure the ostomy bag film better conforms to human skin, specific textured patterns need to be created on its surface to improve breathability and comfort.

[0030] In existing technologies, molding equipment uses a textured heated mold to press down on the film during the heating process to achieve film forming. However, this method of pressing the film down with a heated mold can easily cause excessive heat accumulation in the contact area between the mold and the film, leading to localized overheating and aging of the film, affecting molding quality and product lifespan. More importantly, the hot mold can stick to the film, causing damage or texture deformation during demolding, increasing the scrap rate in the production process.

[0031] In view of this, the present invention provides an ostomy bag film molding device, which aims to reduce the risks of local overheating and aging, demolding adhesion, etc., and improve molding quality.

[0032] This ostomy bag film forming equipment can be used to form ostomy bag films, and is also suitable for other flexible film processing scenarios requiring surface texture forming, such as film production in the fields of medical care products and flexible packaging materials. Among them, ostomy bag films 5a, 5b, and 5c are... Figures 4 to 6 As shown.

[0033] Please see Figure 1 and Figure 2 The ostomy bag film forming equipment includes a placement platform 1, a pressing device 2, a heating device 3, and a heat insulation device 4. The placement platform 1 holds the film to be formed. Air holes 11 on its surface are connected to an air pressure control system. By adjusting the air pressure within the air holes 11, the film can be smoothly lifted during the heating and softening stage, avoiding direct contact between the film and the surface of the placement platform 1, and preventing film deformation due to uneven heat dissipation. Of course, the air holes 11 should correspond to the edges of the film, because the edges are non-forming areas and are trimmed off at the film pressing and forming port. Therefore, the air holes 11 do not affect the film forming process.

[0034] The pressing device 2 is used to press and shape the film after it has been heated and softened. It is positioned directly above the placement table 1. The first drive mechanism 21, which can be a pneumatic or electric cylinder, can drive the mold 22 to move vertically up and down. The mold 22 has molding patterns on its end face facing the film, matching the product requirements. When the pressing device 2 is working, the first drive mechanism 21 drives the mold 22 downwards, causing the molding patterns to fit tightly against the surface of the heated and softened film, thereby pressing the required convex and concave structure onto the film surface, such as... Figure 3 As shown.

[0035] The heating device 3 provides the heat required for softening the film and is located on one side of the placement stage 1. The second drive mechanism 31 can be a linear module or a rotary cylinder, capable of driving the heating unit 32 to move horizontally or flip to the heating position above the placement stage 1. The heating unit 32 integrates a temperature sensor and a temperature control module, which can set the heating temperature and heating time according to the film material and thickness to ensure that the film reaches the optimal softening state. When the heating device 3 is activated, the second drive mechanism 31 first moves the heating unit 32 to a preset position above the placement stage 1. Then, the heating unit 32 begins to heat up and performs non-contact heating of the film, avoiding the problem of localized overheating of the film caused by traditional contact heating.

[0036] The heat insulation device 4 is used to isolate heat transfer between the heating part 32 and the pressing device 2 when the heating device 3 is working, preventing high temperature from damaging the mechanical structure and electrical components of the pressing device 2. It is installed on the side between the placement platform 1 and the pressing device 2. The third drive mechanism 41 can be a servo motor with a transmission assembly, which can drive the heat insulation body 42 to move horizontally. When the heating device 3 starts heating, the third drive mechanism 41 drives the heat insulation body 42 to move from the clearance position to the heating position, so that the heat insulation body 42 is located between the heating part 32 and the pressing device 2, forming a heat insulation barrier; after heating is completed, the third drive mechanism 41 retracts the heat insulation body 42 to the clearance position to avoid affecting the pressing action of the pressing device 2.

[0037] The workflow is roughly as follows: First, the film to be formed is placed on the placement platform 1. The air pressure control system is activated, and positive pressure gas is introduced into the surface of the placement platform 1 through the air vent 11, causing the film to be lifted to a certain height under the action of gas buoyancy and placed in a suspended state. Next, the second drive mechanism 31 of the heating device 3 drives the heating part 32 to move to the heating area above the placement platform 1. The heating part 32 starts working and heats and softens the suspended film. At the same time, the third drive mechanism 41 of the heat insulation device 4 drives the heat insulation body 42 to unfold to the heating position, isolating the radiant heat generated by the heating part 32 from being transferred to the downward pressing device 2. After the film is heated to the preset softening temperature, the second drive mechanism 31 of the heating device 3 drives the heating part 32 to retract to the initial position, and the third drive mechanism 41 of the heat insulation device 4 synchronously drives the heat insulation body 42 to retract to the avoidance position. Subsequently, the first drive mechanism 21 of the pressing device 2 drives the mold 22 downward, so that the forming pattern on the end face of the mold 22 contacts the suspended softened film and applies a preset pressure. At this time, the pneumatic control system adjusts the air pressure in the air hole 11, so that the film adheres to the surface of the placement table 1 under the pressure of the mold 22, completing the pattern pressing. After the preset pressure holding time, the first drive mechanism 21 drives the mold 22 to reset upward, and the pneumatic control system introduces positive pressure gas again to lift the formed film, so that the operator or the material handling mechanism can remove it from the placement table 1, completing one film forming cycle. Throughout the entire operation, the air pressure adjustment of the placement table 1, the pressure control of the pressing device 2, the temperature adjustment of the heating device 3, and the position switching of the heat insulation device 4 are all controlled collaboratively by the central control system, which can be programmed and set according to the forming process parameters of different films to achieve automated continuous production.

[0038] Of course, in the manufacturing process, the cutting process usually begins immediately after the film is formed. For example... Figure 3 As shown, the cutter 6 is located on the left side of the mold 22. After the mold 22 completes the molding and returns to its original position, the cutter 6 can move towards the film under the drive of the drive mechanism to precisely cut the non-molded area at the edge of the molded film, removing the excess portion to obtain a molded pocket film that meets the size requirements. After cutting, the cutter 6 returns to its original position, waiting for the next cutting instruction.

[0039] Because this equipment adopts a design concept that combines non-contact heating with independent air pressure control, the heating device 3 uniformly heats the suspended film, avoiding the localized overheating problem caused by traditional contact heating. Simultaneously, the multi-zone air pressure adjustment function of the placement platform 1 allows for flexible control of the film's suspension height and bonding state. Combined with the precise pressure output of the pressing device 2, this effectively improves the clarity and consistency of the formed texture. Furthermore, the flexible heat-insulating body 42 not only reduces the space occupied by the equipment, but its curved structure combined with the reflective coating also enhances the heat insulation effect, reduces heat loss, and further ensures the stability of equipment operation and energy efficiency.

[0040] The ostomy bag film forming equipment provided in this embodiment of the invention includes a placement platform 1, a pressing device 2, a heating device 3, and a heat insulation device 4. The placement platform 1 is used to place the film and has an air hole 11 to lift the film during heating by adjusting the air pressure. The pressing device 2 is located above the placement platform 1 and includes a first driving mechanism 21 and a mold 22 located at the driving end of the first driving mechanism 21. The mold 22 has forming patterns on the end face facing the film. The heating device 3 is located on one side of the placement platform 1 and includes a second driving mechanism 31 and a heating part 32 located at the driving end of the second driving mechanism 31 to drive the heating part 32 to extend into the upper part of the placement platform 1 to heat the film. The heat insulation device 4 is located on the side between the placement platform 1 and the pressing device 2 and includes a third driving mechanism 41 and a heat insulation body 42 connected to the driving end of the third driving mechanism 41. The third driving mechanism 41 is used to drive the heat insulation body 42 to switch between a heating position and an avoidance position. This invention combines non-contact heating with low-temperature molding by using a separate design for the mold 22 and the heating unit 32, physically separating the heating device 3 from the pressing device 2. During heating, the film is suspended by the air pressure of the placement platform 1, and the heating unit 32 provides non-contact radiant heating to the suspended film, thus avoiding direct contact between the mold 22 and the high-temperature film. After the film softens from the heat, the mold 22 presses down to complete the molding operation. Subsequently, positive pressure gas is introduced into the placement platform 1 to lift the film and separate it from the mold 22. Throughout the entire process, the mold 22 remains at room temperature or a low temperature, which reduces the risk of the hot mold 22 sticking to the film, significantly reduces the breakage rate of the film during demolding, and improves the molding quality of the film.

[0041] In some embodiments, please refer to Figure 2 To achieve non-contact stable support for the film, the arrangement of the air holes 11 was optimized. Specifically, the surface of the placement stage 1 has at least three independent air control zones, each equipped with an air hole 11, which is connected to a bidirectional air pump.

[0042] The independent air control zones are divided radially or in a matrix pattern based on the center of the placement stage 1, ensuring that all areas of the film receive uniform air pressure support. Each air control zone is connected to a bidirectional air pump via an independent solenoid valve, allowing for individual adjustment of air pressure and airflow direction.

[0043] In specific connection, the air vent 11 is connected to the air outlet / inlet of the bidirectional air pump via an air guide pipe. The air guide pipe is equipped with a solenoid valve and a pressure sensor. The solenoid valve controls the airflow to the corresponding air control zone, and the pressure sensor monitors the air pressure in the airflow in real time and feeds the monitoring data back to the central control system. The central control system regulates the air pressure in each air control zone by adjusting the opening degree of the solenoid valve and the operating state of the bidirectional air pump according to preset process parameters. For example, during the heating stage, the central control system controls the solenoid valve to open, and the bidirectional air pump introduces positive pressure gas into the air vent 11. The pressure sensor monitors the air pressure in real time and provides feedback. When the air pressure reaches the set value, the central control system controls the bidirectional air pump to maintain the current output state, ensuring stable suspension of the film. During the pressing stage, as the mold 22 presses down, the central control system gradually reduces the air pressure in some air control zones, allowing the film to gradually adhere to the placement platform 1 from the center to the edge under the combined effect of the mold 22 pressure and the air pressure gradient, avoiding defects such as air bubbles caused by residual air. For large-size film molding, the air pressure can be adjusted in sections to compensate for the sag caused by the film's own weight, ensuring uniform stress distribution in all parts of the film during heating and pressing.

[0044] This invention achieves zoned control of the film support air pressure by dividing the surface of the placement stage 1 into at least three independent air control zones and configuring each zone with an independent air port 11, air guide pipe, solenoid valve, and pressure sensor. This multi-zone independent air control design allows for flexible adjustment of the air pressure in each control zone during the film heating and suspension stage, based on the size and shape of the film and the heating requirements of different areas. This ensures that the film maintains a stable suspension posture and avoids film tilting or wrinkling caused by local air pressure imbalance.

[0045] In some embodiments, please continue reading Figure 2 In order to reduce the space occupied by the heat insulation device 4, the heat insulation body 42 has been optimized. Specifically, the heat insulation body 42 can be rolled up and stored in the side of the drive end of the third drive mechanism 41 in the rolled-up state.

[0046] Among them, the heat insulation body 42 is made of a flexible substrate and a heat insulation core material. The substrate is made of a flexible and heat-resistant material to ensure that it can be rolled up regularly under the action of driving force, so as to avoid rolling jamming or structural damage due to excessive material rigidity.

[0047] The curling action of the heat insulation body 42 can be achieved in several ways. For example, by setting a roller 412 assembly at the drive end of the third drive mechanism 41, one end of the heat insulation body 42 is fixedly connected to the roller 412. When the third drive mechanism 41 drives the roller 412 to rotate, the heat insulation body 42 can be wound around the surface of the roller 412 to achieve curling and storage. Alternatively, a folding structure can be adopted, with multiple heat insulation panels connected by hinges or flexible connectors, achieving folding and storage under the pushing and pulling action of the drive mechanism.

[0048] The present invention, through the roll-up storage design of the heat insulation body 42, minimizes the space occupied by the heat insulation body 42 in the non-working state, and the storage position is close to the drive end side of the third drive mechanism 41, without the need to reserve an additional independent storage area, thus saving the layout space inside the equipment.

[0049] In some embodiments, please continue reading Figure 2 To ensure the stability of the heat insulation body 42 in the unfolded state, a flexible support strip 43 is added. Specifically, the flexible support strip 43 is disposed on the inner side of the heat insulation film 421, and the heat insulation body 42 is a rollable heat insulation film 421; the flexible support strip 43 extends along the winding direction of the heat insulation film 421 to support the heat insulation film 421 when the heat insulation body 42 is in the unfolded state.

[0050] The flexible support strips 43 are made of thin spring steel sheets or glass fiber reinforced resin and are evenly distributed along the length of the heat insulation film 421. Their cross-section is arc-shaped and the curvature matches the arc-shaped structure of the heat insulation film 421 after it is unfolded. The two ends of the support strips are fixed to the inner edge of the heat insulation film 421 with high-temperature resistant adhesive, which does not hinder the rolling action of the heat insulation film 421 and can provide radial support force when unfolded.

[0051] From a technical perspective, when the heat insulation body 42 is in the unfolded state, the flexible support strip 43 stretches and supports the heat insulation film 421 with its own elastic recovery force, so that the heat insulation film 421 maintains the preset arc structure and avoids the film surface from collapsing due to the impact of heating airflow or equipment vibration. When it is rolled up for storage, the support strip bends together with the heat insulation film 421, and its arc cross section can naturally deform along the rolling direction. The flexible properties of the material absorb the rolling stress, ensuring that the overall structure can be tightly rolled on the roll 412, and the storage volume will not increase due to the presence of the support strip.

[0052] In short, the embodiments of the present invention provide a flexible support strip 43 extending along the winding direction on the inner side of the heat insulation film 421. The elastic restoring force of the support strip supports the heat insulation film 421 in the unfolded state to form a stable arc-shaped structure, thereby improving the structural stability of the heat insulation barrier and reducing external airflow interference.

[0053] In some embodiments, please continue reading Figure 2 To concentrate heat onto the film, a reflective coating is provided on the side of the heat insulation film 421 facing the heating part 32. This reflective coating is made of high-purity aluminum foil or vacuum-deposited aluminum film and is attached to the surface of the heat insulation film 421 by a sputtering process. The film thickness is controlled at the micrometer level, which can ensure good extensibility to accommodate the curling action of the heat insulation film 421 and form an efficient heat reflection interface.

[0054] From a technical perspective, when the infrared radiation heat released by the heating unit 32 diffuses outwards, the reflective coating on the surface of the heat insulation film 421 can reflect the radiant heat towards the pressing device back to the heating area, thus refocusing the heat that might otherwise be lost onto the suspended film surface. Simultaneously, the arc-shaped heat insulation film 421, in conjunction with the reflective coating, forms a heat-gathering effect similar to a concave mirror, further enhancing the heat concentration intensity in the film area and reducing heat conduction losses to other components of the equipment.

[0055] Of course, in order to make the heat collection on the film better, the flexible support strip 43 has an arc-shaped structure in the unfolded state, and the opening faces the heating part 32.

[0056] In this embodiment of the invention, a reflective coating is provided on the side of the heat insulation body 42 facing the heating part 32. By utilizing its heat reflection characteristics, the diffused heat is reflected back to the heating area and concentrated on the film. This not only improves heating efficiency and shortens heating time, but also reduces the impact of heat on the pressing device 2, thereby achieving energy saving and improving the overall performance of the equipment.

[0057] In some embodiments, please continue reading Figure 2 To achieve the curling of the heat insulation body 42, a motor-driven roller 412 is used to rotate. Specifically, the third drive mechanism 41 includes a drive motor 411 and a roller 412 driven by the drive motor 411 to rotate. One end of the heat insulation body 42 is fixed to the outer circumferential surface of the roller 412. The drive motor 411 drives the roller 412 to wind the heat insulation body 42 by rotating forward to achieve curling and storage, and drives the roller 412 to release the heat insulation body 42 by rotating in reverse to achieve unfolding and support.

[0058] The drive motor 411 is a servo motor with a gearbox. Its output shaft is rigidly connected to the reel 412 via a coupling, which can control the rotation angle and speed of the reel 412, ensuring that the extension length error of the heat insulation body 42 is controlled within a small range when it is unfolded, thus meeting the coverage accuracy requirements of the heating station. The reel 412 adopts a hollow tubular structure, with a slot opened along the axial direction on its outer circumference. The fixed end of the heat insulation body 42 is locked to the slot by high-temperature resistant bolts to prevent slippage during winding or unwinding.

[0059] When the equipment enters the heating preparation stage, the control system sends a reverse signal to the drive motor 411. The motor output torque is amplified by the reduction gearbox and drives the roller 412 to rotate in the opposite direction. The heat insulation body 42 is gradually released as the roller 412 rotates, and naturally unfolds under the elastic action of its own flexible support strip 43 until it completely covers the space between the heating area and the pressing device 2, forming a complete heat insulation barrier. When the heating is completed and the pressing operation is required, the drive motor 411 receives a forward rotation command, the roller 412 rotates in the forward direction and winds the heat insulation body 42 layer by layer around the outer perimeter. During the winding process, the heat insulation body 42 fits tightly against the surface of the roller 412 due to its flexible nature. Combined with the bendability of the support strip, it finally forms a compact columnar storage structure, perfectly avoiding the movement path of the pressing device 2.

[0060] In this embodiment of the invention, the stability of mechanical transmission ensures the reliability of the curling and unfolding actions of the heat insulation body 42. Furthermore, closed-loop control of the servo motor enables timing coordination with the heating device 3 and the pressing device 2, improving the automation level of the equipment.

[0061] In some embodiments, please continue reading Figure 2 In order to achieve stable storage of the heat insulation body 42, a limiting and guiding structure is added. Specifically, the heat insulation device 4 also includes a limiting flange 413, which is sleeved on both ends of the roller 412 to limit the axial displacement of the heat insulation body 42 during the winding process.

[0062] The limiting flange 413 can be made of wear-resistant alloy material and has an annular disc structure. Its inner diameter matches the outer diameter of the reel 412. It is fixed to both ends of the reel 412 by key connection or set screws to ensure no relative slippage when rotating synchronously with the reel 412. The outer diameter of the flange is larger than the maximum diameter of the heat insulation body 42 after winding, and the end face facing the heat insulation body 42 is polished to form a smooth guide surface.

[0063] When the reel 412 winds the insulation body 42, the limiting flanges 413 on both sides can prevent the insulation body 42 from shifting in the axial direction, avoiding edge misalignment or wrinkles caused by uneven winding tension. During the unfolding process of the insulation body 42, the limiting flanges 413 can also play a guiding role, ensuring that the insulation body 42 is always released centered along the axial direction of the reel 412, ensuring that it can accurately cover the preset heating station area after unfolding.

[0064] By adding a limiting flange 413, this embodiment of the invention further improves the stability and neatness of the winding and storage of the heat insulation body 42, and reduces the risk of equipment failure caused by axial displacement.

[0065] In some embodiments, please continue reading Figure 2The heating element 32 is heated by electromagnetic induction. Specifically, the heating element 32 includes an induction coil and an induction heating element 321. The electromagnetic coil is connected to the drive end of the second drive mechanism 31; the induction heating element 321 is connected to the drive end of the second drive mechanism 31 and is arranged corresponding to the electromagnetic coil to induce heat.

[0066] The electromagnetic coil is made of multi-strand insulated copper wire wound in layers, and the coil frame is made of high-temperature resistant insulating material. The coil leads are connected to a high-frequency power supply via high-temperature resistant cables, which can generate an alternating magnetic field after being energized. The induction heating element 321 is made of an alloy material with excellent magnetic permeability. Its shape matches the outline of the electromagnetic coil, and a fixed gap is maintained between it and the coil to ensure that eddy currents are efficiently induced and converted into heat energy under the action of the alternating magnetic field.

[0067] When the second drive mechanism 31 moves the heating unit 32 to the heating station, the electromagnetic coil is energized to generate an alternating magnetic field. Under the action of the magnetic field, the induction heating element 321 heats up rapidly and heats the suspended film through thermal radiation. Since both are connected to the drive end of the second drive mechanism 31, they can move synchronously and maintain a fixed relative position, ensuring the stability of the magnetic field coupling. This keeps the heating efficiency and temperature distribution of the induction heating element 321 stable, thereby achieving uniform heating of the film.

[0068] In this embodiment of the invention, an electromagnetic coil with an adapted arc structure is correspondingly set and synchronously moved with an induction heating element 321. The alternating magnetic field generated by the coil enables the heating element to efficiently generate heat, and the stable magnetic field coupling ensures the uniformity of heating, thereby achieving uniform heating of the film.

[0069] In some embodiments, please continue reading Figure 2 To allow more heat from the heating element to radiate to the film, a black oxide layer is sprayed onto the surface of the induction heating element 321 facing the film. The black oxide layer is formed using chemical oxidation or anodizing processes and has a high emissivity, which significantly enhances the thermal radiation capability of the induction heating element 321.

[0070] In terms of its working principle, when the induction heating element 321 generates heat under the action of an alternating magnetic field, the black oxide layer on its surface can transfer more heat to the film in the form of thermal radiation. Compared with the surface without a black oxide layer, the black oxide layer can reduce heat loss in other forms, allowing the heat to be radiated more concentratedly towards the film.

[0071] This invention improves the efficiency of heat transfer from the induction heating element 321 to the film, enabling the film to absorb heat more quickly and reach the required softening temperature. This shortens the heating time, reduces heat waste, and further enhances the overall efficiency of the heating device 3, providing better assurance for the efficient and high-quality molding of the film.

[0072] In some embodiments, an airflow protection structure is employed to reduce oxidation of the film during the heating process. Specifically, the heating unit 32 further includes an annular airflow guide ring, the interior of which is connected to a gas source. The end face of the annular guide ring facing the placement stage 1 has a plurality of annular array airflow nozzles to blow protective gas onto the film surface during the heating process.

[0073] During the heating process, a protective gas (such as nitrogen or other inert gases) is blown onto the film surface through airflow nozzles. This isolates the film from oxygen in the air, preventing oxidation and changes in its properties. Simultaneously, the stable airflow removes any impurities that may be present on the film surface, reducing their impact on the film's forming quality and also helping to balance the temperature distribution on the film surface to some extent.

[0074] In this embodiment of the invention, an annular airflow guide ring is provided in the heating part 32. The airflow nozzles of the ring ring blow protective gas onto the film surface to form a uniform airflow barrier, thereby isolating oxygen to prevent film oxidation, reducing the influence of impurities, balancing the temperature, and improving the film forming quality.

[0075] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An ostomy bag film forming device, characterized in that, include: A placement platform for placing film, the placement platform having air holes to lift the film during heating by adjusting the air pressure; A pressing device is provided above the placement platform, including a first driving mechanism and a mold provided at the driving end of the first driving mechanism, wherein the end face of the mold facing the film has molding texture. A heating device is provided on one side of the placement platform, including a second driving mechanism and a heating part provided at the driving end of the second driving mechanism, so as to drive the heating part to extend into the upper part of the placement platform to heat the film; A heat insulation device is located on the side between the placement platform and the pressing device, and includes a third driving mechanism and a heat insulation body connected to the driving end of the third driving mechanism. The third driving mechanism is used to drive the heat insulation body to switch between a heating station and an avoidance station.

2. The ostomy bag film forming equipment according to claim 1, characterized in that, The surface of the placement platform has at least three independent air control zones, each of which is provided with an air hole, and the air hole is connected to a bidirectional air pump.

3. The device according to claim 1, characterized in that, The heat insulation body can be rolled up and stored in the side of the drive end of the third drive mechanism in the rolled-up state.

4. The ostomy bag film forming equipment according to claim 3, characterized in that, The heat insulation body is a rollable heat insulation film, and a flexible support strip is provided on the inner side of the heat insulation film; the flexible support strip extends along the winding direction of the separator film to support the heat insulation film when the heat insulation film is in the unfolded state.

5. The ostomy bag film forming equipment according to claim 4, characterized in that, The heat insulation film has a reflective coating on the side facing the heating element.

6. The ostomy bag film forming equipment according to claim 3, characterized in that, The third driving mechanism includes a drive motor and a reel driven to rotate by the drive motor; one end of the heat insulation body is fixed to the outer circumferential surface of the reel, the drive motor drives the reel to wind the heat insulation body by rotating forward to achieve curling and storage, and drives the reel to release the heat insulation body by rotating in reverse to achieve unfolding and support.

7. The ostomy bag film forming equipment according to claim 6, characterized in that, The heat insulation device also includes a limiting flange, which is sleeved on both ends of the roll and is used to limit the axial displacement of the heat insulation body during the winding process.

8. The ostomy bag film forming equipment according to claim 1, characterized in that, The heating element includes: An electromagnetic coil is connected to the drive end of the second drive mechanism; An inductive heating element is connected to the drive end of the second drive mechanism and is arranged correspondingly to the electromagnetic coil to induce heat.

9. The ostomy bag film forming equipment according to claim 8, characterized in that, The surface of the induction heating element facing the film is coated with a black oxide layer.

10. The ostomy bag film forming equipment according to claim 8, characterized in that, The heating unit also includes an annular airflow guide ring. The interior of the annular guide ring is connected to the air source. The end face of the annular guide ring facing the placement stage has a plurality of annular array airflow nozzles to blow protective gas onto the film surface during the heating process.

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